Sony Xperia Z1 users, who has subscribed to T-Mobile's wireless network services in the US, can check out for the Android 5.0 (Lollipop) OS update that is now active for their smartphones.

According to an Xperia blog post, the latest Android 5.0 OS update bears build number 14.5.B.0.236. Xperia Z1 (bearing model number C6916) users would need to remember that the firmware of the latest update is Android 5.0.2 which has begun a phased rollout. This means, it may take time until all T-Mobile-driven Sony Xperia Z1 smartphones across the US are covered.

Android 5.0.2 will arrive automatically via over-the-air (OTA) mechanism, but you can also check for the update manually on your smartphones.